US4161053A - Automatic-lock slider for slide fastener - Google Patents
Automatic-lock slider for slide fastener Download PDFInfo
- Publication number
- US4161053A US4161053A US05/792,597 US79259777A US4161053A US 4161053 A US4161053 A US 4161053A US 79259777 A US79259777 A US 79259777A US 4161053 A US4161053 A US 4161053A
- Authority
- US
- United States
- Prior art keywords
- latch
- slider
- wedge
- detent
- top plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/26—Sliders
- A44B19/30—Sliders with means for locking in position
- A44B19/306—Sliders with means for locking in position in the form of a locking spring member actuated by the pull member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2561—Slider having specific configuration, construction, adaptation, or material
- Y10T24/2566—Slider having specific configuration, construction, adaptation, or material including position locking-means attached thereto
- Y10T24/257—Slider having specific configuration, construction, adaptation, or material including position locking-means attached thereto having surface engaging element shifted by reorientation of pull tab
Definitions
- This invention relates to slide fasteners, and particularly to a slider which automatically locks to the fastener chain to prevent accidental opening of the fastener.
- the slider of the invention includes the conventional flanged top and bottom plates fixedly connected by a neck or wedge member at one end of the passage extending through the slider between the plates and transversely divided by the neck into two branches.
- a latch is hingedly secured to the top plate outside the slider passage and includes a detent passing through an aperture in the top plate. Two opposite faces of the detent are directed respectively toward and away from the neck and converge inward of the passage toward a free end of the detent. Cooperating abutments on the top plate and the latch limit angular movement of the latch.
- the detent face directed away from the neck is approximately perpendicular to the normal direction of slider movement, and the free end of the detent projects slightly into the passage.
- the free detent end projects relatively far into the slider passage and is nearer the bottom plate than in the unlocking position. A pull is secured to the latch.
- FIG. 1 shows a slider of the invention with partly broken away bottom plate in a bottom view
- FIG. 2 illustrates the slider of FIG. 1 in side-elevational section on the line 2--2.
- the illustrated slider consists of two pressure castings of zinc alloy or other metal.
- One casting constitutes the slider body and includes the wedge-shaped slider neck 1 which fixedly connects a bottom plate 2 and a top plate 3.
- Two lateral flanges 12 project from the bottom plate 2 toward corresponding flanges 13 depending from the top plate 3.
- two fastener stringers pass through the partly branched path in the slider defined by the plates 2, 3, their flanges 12, 13, and the neck 1, the neck and flanges guiding the interlocking elements of the non-illustrated stringers into and out of engagement as is conventional in itself.
- Two lugs 4 project from the outer face of the top plate 3 above the neck 1 and converge to provide a bearing for a carrier portion 50 of a latch 5 which is another unitary pressure casting.
- the carrier portion 50 is a flat, rectangularly elongated plate, apertured and partly rounded for engagement by the bearing lugs 4.
- the narrow end of the carrier portion 50 remote from the bearing lugs 4 is loosely confined between the outer, top face of the plate 3 and a spacedly opposite face of an abutment 31 integral with the top plate 3 and upwardly projecting from the same.
- a hook 52 integrally projects from a central part of the carrier portion 50 and extends close to the abutment member 31 in all angular positions of the latch 5.
- a wire ring 6, only partly shown, is movably retained in the bight of the hook 52 as a pull.
- a detent 53 extends from the central part of the carrier portion 50 through a cylindrical aperture 32 in the top plate 3 into the passage of the slider body.
- the detent 53 is approximately square in cross section, as is best seen in FIG. 1. It has two planar faces transverse to the direction of normal slider movement and directed toward the neck 1 and away from the neck 1 respectively. These faces converge inward of the passage in the slider body toward the free end of the detent 53 adjacent the bottom plate 2.
- the shapes and dimensions of the aperture 32 and the detent 53 are such that the planar, transverse face of the detent 32 directed toward the neck 1 abuts against the wall of the top plate 3 in the aperture 32 in the fully drawn locking position of the latch, and the free end of the detent 53 deeply penetrates into the slider passage.
- the planar transverse face of the detent 53 directed away from the neck 1 is approximately perpendicular to the direction of slider movement, and the free end of the detent is retracted upward from the locking position. It still projects sufficiently into the slider passage frictionally to engage the interlocking fastener elements, not themselves shown in the drawing.
- the aperture 32 and the detent 53 are closely adjacent the neck 1.
- the distance of the neck from the aperture is much smaller than the dimension of the aperture in the direction of slider movement, and the distance of the detent 53 from the neck is about equally small when the detent is in the locking position, and not much greater than the aperture dimension in the unlocking position of the detent.
- the width of the neck 1 is more than twice the width of the detent 53.
- the detent 53 When the detent 53 is in the locking position, the two stringers of the fastener chain normally projecting from the branch passages of the slider body separated by the neck 1 cannot be pulled out of the slider because the detent is caught between engaged chain elements or abuts against the last engaged element.
- the detent When the detent is in the unlocking position, its planar transverse face directed away from the neck 1 is frictionally engaged by a fastening element during initial opening movement of the latter, and the latch 5 is tilted into the locking position, thereby preventing any further chain movement in the opening direction.
- the slider When the slider is moved toward the left, as viewed in FIG. 2, by traction applied to the pull ring 6, the free end of the detent 53 in the unlocking position does not interfere with the slider movement.
- abutment arrangements for limiting the angular movement of the latch 5 may be resorted to if desired for any reason.
- the detent face directed away from the neck 1 may engage the material of the top plate 3 before the carrier portion 50 strikes the abutment member 31.
- the journal part of the carrier portion 50 and the bearing lugs 4 may be shaped in an obvious manner to limit angular movement of the latch.
- the illustrated slider is symmetrical relative to the plane of FIG. 2, but this is not a necessary feature of this invention. Fewer than four flanges 12, 13 may be provided, as is well known, and the provision of flanges on only one of the two plates 2, 3 is specifically contemplated.
Landscapes
- Slide Fasteners (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2620682A DE2620682B2 (de) | 1976-05-11 | 1976-05-11 | Reißverschlußschieber |
DE2620682 | 1976-05-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4161053A true US4161053A (en) | 1979-07-17 |
Family
ID=5977578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/792,597 Expired - Lifetime US4161053A (en) | 1976-05-11 | 1977-05-02 | Automatic-lock slider for slide fastener |
Country Status (6)
Country | Link |
---|---|
US (1) | US4161053A (it) |
JP (1) | JPS52138241A (it) |
DE (1) | DE2620682B2 (it) |
FR (1) | FR2350807A1 (it) |
GB (1) | GB1559433A (it) |
IT (1) | IT1076045B (it) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4615082A (en) * | 1984-06-21 | 1986-10-07 | Hans Horlacher | Slider for a slide fastener |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0757204B2 (ja) * | 1986-07-04 | 1995-06-21 | ワイケイケイ株式会社 | 停止装置付きスライダーを有するスライドファスナー |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2018948A (en) * | 1932-05-03 | 1935-10-29 | Hookless Fastener Co | Slide fastener |
US2450550A (en) * | 1945-07-26 | 1948-10-05 | Us Rubber Co | Locking slider for slide fasteners |
GB659290A (en) * | 1950-03-21 | 1951-10-17 | Conmar Prod Corp | Automatic lock slider for slide fasteners |
DE1075066B (de) * | 1960-02-11 | Lightning Fasteners Limited. Birmingham (Großbritannien): | Schieber für Schraubenfederreißverschlüsse | |
US3080632A (en) * | 1961-07-20 | 1963-03-12 | Holman Elmer | Zipper safety fastener |
GB978831A (en) * | 1961-10-26 | 1964-12-23 | Aero Zipp Fasteners Ltd | Improvements in or relating to sliding clasp fasteners |
US3798714A (en) * | 1972-05-18 | 1974-03-26 | Textron Inc | Flange-lock slider |
GB1377451A (en) * | 1972-03-07 | 1974-12-18 | Opti Holding Ag | Sliders for sliding clasp fasteners |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2044191A (en) * | 1929-12-21 | 1936-06-16 | Hookless Fastener Co | Separable fastener |
NL30287C (it) * | 1929-12-21 | |||
US2053463A (en) * | 1935-02-11 | 1936-09-08 | Prentice G E Mfg Co | Slider for fasteners |
DE683948C (de) * | 1936-04-26 | 1939-11-18 | Siegbert Wittenberg | Reissverschlussschieber |
US2159387A (en) * | 1937-02-27 | 1939-05-23 | Killmer Ogden | Locking slider for slide fasteners |
FR919541A (fr) * | 1944-08-21 | 1947-03-11 | Lightning Fasteners Ltd | Perfectionnements aux curseurs pour fermetures à curseur |
CH250882A (de) * | 1945-07-26 | 1947-09-30 | Us Rubber Co | Reissverschluss. |
US2568663A (en) * | 1946-11-19 | 1951-09-18 | Waldes Kohinoor Inc | Slider for separable fasteners |
US2549380A (en) * | 1947-05-15 | 1951-04-17 | Louis H Morin | Reverse locking slider |
US2521651A (en) * | 1948-11-17 | 1950-09-05 | Talon Inc | Slider for slide fasteners |
GB745617A (en) * | 1954-02-09 | 1956-02-29 | Dugald Laird Hair | Improvements in covered sliding clasp fasteners |
JPS4715300U (it) * | 1971-03-23 | 1972-10-23 |
-
1976
- 1976-05-11 DE DE2620682A patent/DE2620682B2/de not_active Ceased
-
1977
- 1977-04-28 GB GB17783/77A patent/GB1559433A/en not_active Expired
- 1977-04-29 IT IT23042/77A patent/IT1076045B/it active
- 1977-05-02 US US05/792,597 patent/US4161053A/en not_active Expired - Lifetime
- 1977-05-09 JP JP5214577A patent/JPS52138241A/ja active Granted
- 1977-05-11 FR FR7714355A patent/FR2350807A1/fr active Granted
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1075066B (de) * | 1960-02-11 | Lightning Fasteners Limited. Birmingham (Großbritannien): | Schieber für Schraubenfederreißverschlüsse | |
US2018948A (en) * | 1932-05-03 | 1935-10-29 | Hookless Fastener Co | Slide fastener |
US2450550A (en) * | 1945-07-26 | 1948-10-05 | Us Rubber Co | Locking slider for slide fasteners |
GB659290A (en) * | 1950-03-21 | 1951-10-17 | Conmar Prod Corp | Automatic lock slider for slide fasteners |
US3080632A (en) * | 1961-07-20 | 1963-03-12 | Holman Elmer | Zipper safety fastener |
GB978831A (en) * | 1961-10-26 | 1964-12-23 | Aero Zipp Fasteners Ltd | Improvements in or relating to sliding clasp fasteners |
GB1377451A (en) * | 1972-03-07 | 1974-12-18 | Opti Holding Ag | Sliders for sliding clasp fasteners |
US3798714A (en) * | 1972-05-18 | 1974-03-26 | Textron Inc | Flange-lock slider |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4615082A (en) * | 1984-06-21 | 1986-10-07 | Hans Horlacher | Slider for a slide fastener |
Also Published As
Publication number | Publication date |
---|---|
IT1076045B (it) | 1985-04-22 |
JPS52138241A (en) | 1977-11-18 |
DE2620682B2 (de) | 1981-04-23 |
FR2350807A1 (fr) | 1977-12-09 |
JPS5639203B2 (it) | 1981-09-11 |
DE2620682A1 (de) | 1977-11-24 |
GB1559433A (en) | 1980-01-16 |
FR2350807B1 (it) | 1982-05-28 |
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